Update checkstyle and enforce.

Author: garydgregory

src/conf/checkstyle.xml

@@ -46,13 +46,13 @@ limitations under the License.
     </module>
 
     <module name="TreeWalker">
+        <module name="LeftCurly" />
 
         <!-- Checks for Javadoc comments.                     -->
         <!-- See http://checkstyle.sf.net/config_javadoc.html -->
         <module name="JavadocType"/>
         <module name="JavadocVariable"/>
 
-
         <!-- Checks for Naming Conventions.                  -->
         <!-- See http://checkstyle.sf.net/config_naming.html -->
         <module name="ConstantName"/>
@@ -72,7 +72,6 @@ limitations under the License.
         <module name="RedundantImport"/>
         <module name="UnusedImports"/>
 
-
         <!-- Checks for Size Violations.                    -->
         <!-- See http://checkstyle.sf.net/config_sizes.html -->
         <!--<module name="FileLength"/>-->

src/main/java/org/apache/commons/cli/GnuParser.java

@@ -78,8 +78,7 @@ protected String[] flatten(final Options options, final String[] arguments, fina
             }
 
             if (eatTheRest) {
-                for (i++; i < arguments.length; i++) // NOPMD
-                {
+                for (i++; i < arguments.length; i++) { // NOPMD
                     tokens.add(arguments[i]);
                 }
             }

src/main/java/org/apache/commons/cli/HelpFormatter.java

@@ -807,8 +807,7 @@ private Appendable renderWrappedTextBlock(final StringBuffer sb, final int width
                 }
                 renderWrappedText(sb, width, nextLineTabStop, line);
             }
-        } catch (final IOException e) // NOPMD
-        {
+        } catch (final IOException e) { // NOPMD
             // cannot happen
         }
 

src/main/java/org/apache/commons/cli/Parser.java

@@ -310,8 +310,7 @@ protected void processProperties(final Properties properties) throws ParseExcept
                     if (opt.getValues() == null || opt.getValues().length == 0) {
                         try {
                             opt.addValueForProcessing(value);
-                        } catch (final RuntimeException exp) // NOPMD
-                        {
+                        } catch (final RuntimeException exp) { // NOPMD
                             // if we cannot add the value don't worry about it
                         }
                     }

src/test/java/org/apache/commons/cli/HelpFormatterTest.java

@@ -294,8 +294,7 @@ public void testOptionWithoutShortFormat2() {
     }
 
     @Test
-    public void testPrintHelpNewlineFooter()
-    {
+    public void testPrintHelpNewlineFooter() {
         final HelpFormatter formatter = new HelpFormatter();
         final ByteArrayOutputStream out = new ByteArrayOutputStream();
         final PrintWriter pw = new PrintWriter(out);
@@ -322,8 +321,7 @@ public void testPrintHelpNewlineFooter()
     }
 
     @Test
-    public void testPrintHelpNewlineHeader()
-    {
+    public void testPrintHelpNewlineHeader() {
         final HelpFormatter formatter = new HelpFormatter();
         final ByteArrayOutputStream out = new ByteArrayOutputStream();
         final PrintWriter pw = new PrintWriter(out);